2-16 Measurement Options Model 6517A Getting Started Manual
Resolution
All functions can operate from 3½ to 6½ digits of resolution. Each function can have a
unique resolution setting.
Configure resolution
Perform the following steps to set resolution for a measurement function:
1. Press the CONFIG key and then the desired function key (V, I, etc.).
2. Using the cursor keys (
and ), select RESOLUTION and press ENTER to dis-
play the following resolution options:
a. 3.5 to 6.5d: Select one of these options to set the display resolution.
b. AUTO: This option automatically optimizes the resolution for the present inte-
gration time (speed) setting (see the User’s Manual).
3. Set resolution by placing the cursor (using and keys) on the menu option
pressing ENTER. See “Menus” if you need more information to navigate through
the menu structure.
Filter
Filtering stabilizes noisy measurements. The Model 6517A uses a digital filter and a
median filter. When a filter is enabled by pressing FILTER (FILT annunciator turns on),
the selected filter for that measurement function is in effect. Pressing FILTER a second
time disables the filter.
Filter types
The Model 6517A has two types of digital filters: averaging and advanced. Both types are
a simple average of 1 to 100 reading conversions. The difference is a user-programmed
noise “window” for the advanced filter. The noise window (expressed as a percentage of
range) allows a faster response time to large signal step changes (see Figure 2-5). See the
User’s Manual for complete information on filter types.
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